Airports in cn-13 region

Tangshan Sannühe Airport
Fengning Air Base
Tangshan Air Base
Badaling or YanQing Airport
Zhangjiakou Ningyuan Airport
Zunhua Air Base
Cangxian Air Base
Jiugucheng Air Base
Pingquan Air Base
Shanhaiguan Airport
Shijiazhuang Daguocun International Airport
Xingtai Dalian Airport